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Color Imaging Element

A technology of color imaging element and photoelectric conversion element, which is applied to color TV parts, electrical components, color TV, etc., can solve the problem of resolution reduction and achieve the effect of simplified processing

Inactive Publication Date: 2014-09-10
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, although the coloration caused by the foldback of the high-frequency signal can be reduced, there is a problem that the resolution is lowered among the disadvantages.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0073] [camera equipment]

[0074] figure 1 It is a diagram showing the first embodiment of the single-plate type color imaging element of the present invention, and particularly shows a color filter arrangement of color filters provided in the color imaging element.

[0075] This color imaging device 1 includes a plurality of pixels (not shown) composed of photoelectric conversion elements (such as photodiodes) arranged in the horizontal direction and vertical direction (two-dimensional arrangement), and a plurality of pixels (not shown) arranged on the light receiving surface of each pixel. figure 1 In the color filter of the shown color filter array, any one of color filters of three primary colors of red (R), green (G), and blue (B) is arranged on each pixel.

[0076] In addition, the color imaging element is not limited to a CCD (Charge Coupled Device) color imaging element, and may be another type of imaging element such as a CMOS (Complementary Metal Oxide Semiconduc...

no. 2 approach

[0185] The single-plate type color imaging element according to the second embodiment of the present invention differs from the single-plate type color imaging element according to the first embodiment only in the color filter arrangement of the color filters provided in the color imaging element. Hereinafter, the second embodiment will be described, but the description of the same parts as the first embodiment will be omitted, and only the color filter arrangement that is different from the first embodiment will be described.

[0186] [Characteristics of the color filter array]

[0187] Figure 11 It is a diagram showing a second embodiment of the single-plate color imaging element of the present invention, and particularly shows a color filter arrangement of color filters provided in the color imaging element 2 . The color filter array of the color imaging element according to the second embodiment has the following features (1), (2), (3), (4) and (6).

[0188] [Feature (1...

no. 3 approach

[0200] The single-plate type color imaging element according to the third embodiment of the present invention differs from the single-plate type color imaging element according to the first embodiment only in the color filter arrangement of the color filters provided in the color imaging element. Hereinafter, the third embodiment will be described, but the description of the same parts as the first embodiment will be omitted, and only the color filter arrangement that is different from the first embodiment will be described.

[0201] [Characteristics of the color filter array]

[0202] Figure 12 It is a diagram showing a third embodiment of the single-plate type color imaging element of the present invention, and particularly shows a color filter arrangement of color filters provided in the color imaging element 3 . The color filter array of the color imaging element according to the third embodiment has the following features (1), (2), (3) and (4).

[0203] [Feature (1)] ...

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Abstract

A single-plate color imaging element, where color filters of the same color are arranged on a predetermined number of vertically and horizontally adjacent photoelectric conversion elements, the color filter array includes a plurality of unit blocks including the color filters arranged on the predetermined number of vertically and horizontally adjacent photoelectric conversion elements, the color filter array includes a basic array pattern including the unit blocks arranged in a square grid shape, one or more first filters are arranged in the horizontal, vertical, upper right, and lower right directions of the color filter array, one or more second filters corresponding to each color of the second color are arranged in the horizontal and vertical directions of the color filter array, and a proportion of the number of pixels of the first color is greater than a proportion of the number of pixels of each color of the second color.

Description

technical field [0001] The present invention relates to a color imaging device, and more particularly, to a color imaging device capable of suppressing the occurrence of color moiré and achieving high resolution. Background technique [0002] The output image of the single color image sensor is a RAW image (mosaic image), so a multi-channel image can be obtained by interpolating missing color pixels from surrounding pixels (demosaic processing). [0003] Demosaic processing is a process of calculating all color information corresponding to each pixel from a mosaic image corresponding to a color filter arrangement of a single-plate color imaging device, and is also referred to as demosaic processing. For example, in the case of an imaging element composed of color filters of three colors of RGB, color information of all RGB is calculated corresponding to each pixel from a mosaic image composed of RGB. [0004] In this case, the problem is the reproduction characteristics of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/07H04N9/03H04N23/12
CPCH04N5/357H04N2209/045H04N9/045H04N9/07H04N5/2173H04N13/218H04N13/257H04N23/843H04N23/12H04N25/134H04N25/60H04N25/133
Inventor 河合智行林健吉田中诚二
Owner FUJIFILM CORP
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